Apparatus and method for producing a zoomed image signal

Details Apparatus and method for producing a zoomed image signal Apparatus and method for producing a zoomed image signal

1994-08-26

1995-04-11

Groody, James J.

Television

Image signal processing circuitry specific to television

Special effects

348704, 348240, 358451, H04N 5262

Patent

active

054063345

ABSTRACT:
Apparatus and methods are provided for producing a zoomed image signal from an input image signal. The input image signal is separated into a number of block signals each representing a subarea of the input image. Class codes are produced based on the block signals. Each class code identifies predetermined image data of a zoomed image portion which corresponds to the subarea represented by the block signal on which the class code is based. The predetermined image data is generated in response to each class code. Shifted display positions are assigned for image data of the selected block signals, and the zoomed image signal is synthesized from the image data having shifted display positions and the predetermined image data such that the predetermined image data are assigned display positions intermediate the shifted display positions of the other data.

REFERENCES:
patent: 4589029 (1986-05-01), Torimani et al.
patent: 4951125 (1990-08-01), Kojima et al.
patent: 5008752 (1991-04-01), Van Nostrand
patent: 5107254 (1992-04-01), Choi
patent: 5307167 (1994-04-01), Park et al.

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